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NERVOUS SYSTEM BIOD 152 LYMPHATIC IMMUNE SYSTES
ANATOMY AND PSYCOLOGY Z EXAM LATEST UPDATES -
2025/2026- ACTUAL QUESTIONS WITH VERIFIED ANSWERS
ALREADY GRADED A+ GUARANTEED SUCCESS
What are the 2 divisions of the efferent division of the peripheral nervous system?
Somatic system and the autonomic system.
What is controlled by the somatic and autonomic nervous systems?
The somatic system controls the movements of skeletal muscles, skin, and joints.
The autonomic system nerves control the glands and smooth muscles of the
internal organs
List the 2 parts of the nervous system.
CNS and PNS (central nervous system and peripheral nervous
system)
How are the parts of the central nervous system protected?
The skull protects the brain and the vertebrae protect the spinal cord.
Collections of cell bodies inside the central nervous system are called__________
nuclei
the collection of nerve axons in the central nervous system are called
tracts.
What is included in the peripheral nervous system?
The PNS includes the cranial nerves and the spinal nerves.
Collections of cell bodies inside the peripheral nervous system are
, 2
called
ganglia
the collection of nerve axons in the peripheral
nervous system is called
nerves.
What are the 2 divisions of the peripheral nervous system?
Afferent, efferent (sensory - afferent and motor - efferent)
Describe the movement of nerve impulses in the peripheral nervous system.
The peripheral nervous system receives impulses from the sensory organs via the
afferent division and then relays signals or impulses from the central nervous
system to muscles and glands via the motor or efferent division.
. What are the 2 divisions of the autonomic nervous system?
sympathetic and parasympathetic nervous systems.
What is the function of the sympathetic nervous system?
The sympathetic nervous system activates and prepares the body for vigorous
muscular activity, stress, and emergencies.
What is the function of the parasympathetic nervous system?
The parasympathetic nervous system generally operates during normal situations,
permits digestion, and conserves energy.
Label the components of a neuron.
dendrites, cell body, nucleus, axon hillock, myelin sheath, node of ranvier,
and axon terminal.
List 3 unusual characteristics of neurons.
- Neurons do not undergo mitosis (cell division)
- require enormous amounts of fuel to be able to survive just minutes without
oxygen
, 3
- can last an entire human lifetime.
List the 3 parts that all neurons contain.
The dendrites, the cell body, and the axon.
Describe the structure and function of the neuron cell body.
Synthesizes all nerve cell products, consists of a large nucleus with surrounding
cytoplasm containing the normal organelles
Describe the structure and function of the dendrite.
Numerous short extensions that emanate from the cell body which receive
information from other neurons conducting those nerve impulses toward the cell
body.
Describe the axon, including the number in each neuron, function, structure and
organelles.
Conducts nerve impulses away from the cell body to its axon terminals where it is
emitted across a synapse to the dendrite of another neuron. Axons are composed
of cells like the cell body but lack a rough endoplasmic reticulum.
Describe the function and site of synthesis and storage of neurotransmitters.
One of the main functions of the cell body is to manufacture neurotransmitters,
which are chemicals stored in secretory vesicles at the end of axon terminals. When
neurotransmitters are released by the axon terminal vesicles, they carry the
transmission of the nerve impulse from one neuron to another.
What is a synapse?
A synapse is a gap between two neurons.
A post-synaptic neuron is a neuron that is found ____ the synapse.
after
______neurons have three or more extensions from the cell body and have one
axon and many dendrites.
, 4
multipolar
_________ neurons have a central cell body with two extensions.
bipolar
_____ neurons have one extension off the cell body which branches into two: one
central process running to the CNS and another peripheral process running to the
sensory receptor.
Unipolar (pseudounipolar)
______ neurons are unipolar and function to carry information from the peripheral
to the central nervous system.
Sensory
These types of neurons are also called association neurons.
Interneurons
_____ neurons send messages from the central nervous system to the
peripheral.
Motor
What is the function of neuroglial cells?
Neuroglial cells are support cells, helping to support neurons to enable them to
thrive in their needed environment.
What are the peripheral nervous system neuroglial cell types?
Schwann cells; satellite cells
True or False: Axons cannot regenerate in the peripheral nervous
system.
false
True or False: Myelin sheath is continuous and has no gaps.
NERVOUS SYSTEM BIOD 152 LYMPHATIC IMMUNE SYSTES
ANATOMY AND PSYCOLOGY Z EXAM LATEST UPDATES -
2025/2026- ACTUAL QUESTIONS WITH VERIFIED ANSWERS
ALREADY GRADED A+ GUARANTEED SUCCESS
What are the 2 divisions of the efferent division of the peripheral nervous system?
Somatic system and the autonomic system.
What is controlled by the somatic and autonomic nervous systems?
The somatic system controls the movements of skeletal muscles, skin, and joints.
The autonomic system nerves control the glands and smooth muscles of the
internal organs
List the 2 parts of the nervous system.
CNS and PNS (central nervous system and peripheral nervous
system)
How are the parts of the central nervous system protected?
The skull protects the brain and the vertebrae protect the spinal cord.
Collections of cell bodies inside the central nervous system are called__________
nuclei
the collection of nerve axons in the central nervous system are called
tracts.
What is included in the peripheral nervous system?
The PNS includes the cranial nerves and the spinal nerves.
Collections of cell bodies inside the peripheral nervous system are
, 2
called
ganglia
the collection of nerve axons in the peripheral
nervous system is called
nerves.
What are the 2 divisions of the peripheral nervous system?
Afferent, efferent (sensory - afferent and motor - efferent)
Describe the movement of nerve impulses in the peripheral nervous system.
The peripheral nervous system receives impulses from the sensory organs via the
afferent division and then relays signals or impulses from the central nervous
system to muscles and glands via the motor or efferent division.
. What are the 2 divisions of the autonomic nervous system?
sympathetic and parasympathetic nervous systems.
What is the function of the sympathetic nervous system?
The sympathetic nervous system activates and prepares the body for vigorous
muscular activity, stress, and emergencies.
What is the function of the parasympathetic nervous system?
The parasympathetic nervous system generally operates during normal situations,
permits digestion, and conserves energy.
Label the components of a neuron.
dendrites, cell body, nucleus, axon hillock, myelin sheath, node of ranvier,
and axon terminal.
List 3 unusual characteristics of neurons.
- Neurons do not undergo mitosis (cell division)
- require enormous amounts of fuel to be able to survive just minutes without
oxygen
, 3
- can last an entire human lifetime.
List the 3 parts that all neurons contain.
The dendrites, the cell body, and the axon.
Describe the structure and function of the neuron cell body.
Synthesizes all nerve cell products, consists of a large nucleus with surrounding
cytoplasm containing the normal organelles
Describe the structure and function of the dendrite.
Numerous short extensions that emanate from the cell body which receive
information from other neurons conducting those nerve impulses toward the cell
body.
Describe the axon, including the number in each neuron, function, structure and
organelles.
Conducts nerve impulses away from the cell body to its axon terminals where it is
emitted across a synapse to the dendrite of another neuron. Axons are composed
of cells like the cell body but lack a rough endoplasmic reticulum.
Describe the function and site of synthesis and storage of neurotransmitters.
One of the main functions of the cell body is to manufacture neurotransmitters,
which are chemicals stored in secretory vesicles at the end of axon terminals. When
neurotransmitters are released by the axon terminal vesicles, they carry the
transmission of the nerve impulse from one neuron to another.
What is a synapse?
A synapse is a gap between two neurons.
A post-synaptic neuron is a neuron that is found ____ the synapse.
after
______neurons have three or more extensions from the cell body and have one
axon and many dendrites.
, 4
multipolar
_________ neurons have a central cell body with two extensions.
bipolar
_____ neurons have one extension off the cell body which branches into two: one
central process running to the CNS and another peripheral process running to the
sensory receptor.
Unipolar (pseudounipolar)
______ neurons are unipolar and function to carry information from the peripheral
to the central nervous system.
Sensory
These types of neurons are also called association neurons.
Interneurons
_____ neurons send messages from the central nervous system to the
peripheral.
Motor
What is the function of neuroglial cells?
Neuroglial cells are support cells, helping to support neurons to enable them to
thrive in their needed environment.
What are the peripheral nervous system neuroglial cell types?
Schwann cells; satellite cells
True or False: Axons cannot regenerate in the peripheral nervous
system.
false
True or False: Myelin sheath is continuous and has no gaps.
